61
Paul H F Merswolke, Thomas B Gardner: Wind powered hydroelectric power plant and method of operation thereof. New World Generation, Daryl W Schnurr, January 6, 2004: US06672054 (7 worldwide citation)

A hydroelectric power plant uses a plurality of windmills connected to compressed air generators to produce pressurized air. Pressurized air is used to drive water through a turbine to produce electrical power. The water is recycled and the power plant includes reserve pressurized air tanks to allow ...


62
Steven J DeAngeles: System and process for generating hydroelectric power. Kelly & Krause, Joseph P Krause, September 14, 2010: US07795748 (6 worldwide citation)

A system and process for generating hydroelectric power within a body of water uses head pressure existing between two depths of the water. A vertically arranged conduit has an upper water intake and is in fluid communication with a reservoir situated at a lower depth. In a first cycle, water flow i ...


63
William Sheridan Fielder: Buoyant rotor. March 25, 2008: US07348686 (6 worldwide citation)

A buoyancy means and apparatus for reducing friction in rotational devices, particularly electric generators and or turbines. This feature is critical in hydroelectric power plants and ocean energy projects where the rotating weights are significant. Flotation devices are affixed to rotational devic ...


64
S Massoud Azizi, Kourosh Kia Azizi: System for buoyancy power generation. Beaumont Gitlin Tashjian, Larry F Gitlin, September 27, 2011: US08024927 (6 worldwide citation)

An apparatus comprising the use of at least two or more vertically disposed tubular structures with each tube filled with water, and having a nozzle-like conduit at one end. Inside each tube is a sealed cylinder or float for containing either gas or water. When gas is introduced into the float posit ...


65
NORDMANN THOMAS: [fr] Agencement photovoltaïque flottant, [de] Schwimmende Photovoltaik-Anordnung, [en] Floating photovoltaic unit. TNC CONSULTING, March 23, 2011: EP2299499-A1 (6 worldwide citation)

[en] The photovoltaic arrangement (1) has a floating body designed as water noodles and/or sea snakes that are arranged parallel to each other, where the photovoltaic arrangement is connected with a hydroelectric power plant (6) for supplying photovoltaically generated electricity into an electricit ...


66
Boutique Gerard: Low output preassembled hydroelectric power plant.. Acec, September 30, 1981: EP0036453-A1 (6 worldwide citation)

1. Hydro-electric installation comprising a turbine (11) with a vertical axis arranged within a prefabricated tank (1) made in one piece or from a plurality of superposed elements, provided with a cover (16) on which there are fixed a gearing (15) and a shaft (12) connecting the said turbine (11) to ...


67
Noguchi Tetsuya: Control system for high-efficiency operation of generating units in hydroelectric power stations.. Tokyo Shibaura Electric Co, July 3, 1991: EP0435182-A2 (6 worldwide citation)

A control system for the high-efficiency operation of two or more large-capacity generating (5, 6) units and at least one small-capacity (7) generating unit provided at a hydroelectric power station which has a necessity ot ensure the discharge of a constant amount of water taken downstream therefro ...


68
Patrick A March, Richard K Fisher Jr: Control system for enhancing fish survivability in a hydroelectric power generation installation. Hydro Resource Solutions, Foley & Lardner, March 19, 2002: US06357389 (6 worldwide citation)

A system for controlling a hydroelectric power production facility includes sensors for detecting the presence of fish adjacent to the facility. A controller linked to the sensors controls the orientation of control surfaces associated with a turbine/generator set to enhance the survivability of fis ...


69
Simon Srybnik, Louis Srybnik: Transportable hydro-electric generating system with improved water pressure enhancement feature activation systems. July 21, 2009: US07564144 (5 worldwide citation)

The invention is a transportable hydroelectric power generating system which is capable of being fully or partially assembled in a factory setting and then transported to a water stream. The system includes either a wind-driven or solar-powered pump or both features which serve to further supply pre ...


70
Allen David Miller: System and method for controlling water flow between multiple reservoirs of a renewable water and energy system. Natural Energy Resources Company, Sheridan Ross P C, January 11, 2011: US07866919 (5 worldwide citation)

A high altitude pumped-storage system for selectively integrating, storing, and distributing water and energy to increase the regional productivity of existing and future water and energy resources throughout multiple river basins is disclosed. This system addresses in part the increased requirement ...